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arXiv · 1208.3690

Rapid ultrafilters and summable ideals

Jana Flašková
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Abstract

This note answers the following question: Is it consistent that for an arbitrary tall summable ideal I_g there exists an I_g-ultrafilter which is not rapid? We show that assuming Martin's Axiom for \sigma-centered posets such ultrafilters exist for each tall summable ideal I_g.

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Jana Flašková. 2012-08-17. Rapid ultrafilters and summable ideals. https://arxiv.org/abs/1208.3690

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